baber/WOPTO huggingface dataset:
Patent GB-551720-A (GB)
Title: Improvements in or relating to collet chucks
IPC: B23B31/20
Filed: 1941-09-04
Abstract: 551,720. Chucks. ABBEY, A. (Chittenden Corporation). Sept. 4, 1941, No. 11329. [Class 83 (iii)] A collet chuck comprises an internally-tapered body 10 which receives a split collet 15 forced inwards to grip the work W by a screwed cap 25 acting through a floating compensating ring 30. The collet, Fig. 4, has slots 19 terminating in enlarged openings 21 and also shorter intermediate slots 22. The coacting surfaces between the cap and member 30 may be part spherical, as shown in Fig. 6, or conical and the member 30 is positioned in the cap by a spring ring 40.
Patent GB-1414043-A (GB)
Title: Burner
IPC: F23D14/12
Filed: 1973-03-09
Abstract: 1414043 Gas burner MIDLAND-ROSS CORP 9 March 1973 [20 April 1972] 11423/73 Heading F4T A burner has a combustion chamber 22 of circular internal cross-section and one or more passages 38 each with a longitudinal axis substantially parallel to a tangent to the internal wall of chamber 22, the or each passage 38 having a first portion 44 opening into chamber 22 and a second portion 42 of larger cross-section than portion 44 extending upstream therefrom and coaxial therewith, the upstream end of portion 42 having a port for connection to a source of air and a port for connection to a source of fuel gas. Fuel gas is injected into portions 42 via speeds (50), Fig. 2 (not shown), on the downstream ends of tubes 48, and air, which may be heated, is supplied via pipes 58, 56. Passages 38 are directed at 2 to 4 degrees to the tangent to chamber 22 to direct the fuel/air mixture away from the wall thereof to promote mixing and stability, further mixing being achieved by the presence of a shoulder 34 between a refractory member defining chamber 22 and a further refractory member 30. The portions 42 are twice as long and twice the diameter of portions 44, the outlet aperture (52) of each speed (50) having a diameter <SP>1</SP>/ 5  to <SP>1</SP>/ 10  the distance of that aperture from the upstream end of the corresponding portion 44.
Patent GB-255958-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/08
Filed: 1925-05-02
Abstract: 255,958. Turner Tanning Machinery Co., Ltd., and Schettler, G., A. May 2, 1925. Clutches, friction. - A friction clutch comprising a contracting coil is provided with a pivoted strut acting on one end of the coil and operated by toggle levers to disengage the clutch. The coil 2, slit axially and circumferentially to form a stepped helix, rests by a lug 5 at one end on an adjusting-screw 7 in the driving member 1 and has at the other end a hollowed lug 6 to receive one rounded end of a normally inclined strut 15, the opposite end of which is similarly received in the side of a lever 13 pivoted at 14 in the part 1. The other end of the lever 13 is connected by a link 12 to a collar 11 sliding on the driving-shaft 8. On moving the collar inwards until the link 12 is approximately radial, the lever 13 is turned to bring the strut 15 substantially tangential to the coil 2, which is thus tightened on the driven drum 3, the lateral thrust on the lever being taken by a wall of the member 1. The strut 15 and the pair of levers 13 14 both act as toggles. In a modification, the link 12 is omitted, the end of the lever 13 being pressed by a blade spring into contact with a conical surface on the operating collar and riding on to a cylindrical part thereof when the clutch is engaged.
Patent GB-879813-A (GB)
Title: Improvements in and relating to electric switches
Inventor: WHIFFIN GEORGE LESLIE
IPC: H01H1/34
Filed: 1959-04-03
Abstract: 879,813. Electric switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 1, 1960 [April 3, 1959], No. 11462/59. Class 38 (5). The spacing of the moving and fixed contacts of a snap-action switch is determined in assembly by providing a back stop 10a carried frictionally in a fixed part 13 of the switch under sufficient pressure to prevent movement by the pressure of moving contact 4. To set the gap a feeler 8 is inserted and the stop 10a pressed up to the feeler which is then removed. The snap spring 1 is bifurcated and may be a bimetal. The stop 10a may be a back contact.
Patent GB-254831-A (GB)
Title: Improvements in or relating to pipe stopping means
IPC: F16K7/10
Filed: 1925-05-02
Abstract: 254,831. Lucas, J. May 2, 1925. Stopping pipes.-The flow of fluid in a pipe 1 is stopped and if necessary a bypass established, by boring a hole 2, and inserting a gland 3 carrying a tubular body 4 central in which is a tube 11 carrying at its lower end an inflatable bag 12 normally housed within the tube but capable of being extruded by pressing down the pipe 11. The pipe 1 can be connected to a suitable pump to inflate the bag and a pressure gauge or pilot bag 14 may be provided to indicate when the pressure is sufficient. The tube 4 is marked so that it may be ascertained when the flared end 5 of the tube 4 is coaxial with the pipe 1. Sidebranches 7 of two separate pieces of apparatus 4 may be connected to constitute a bypass.
Patent GB-114958-A (GB)
IPC: B27C5/02
Abstract: 114,958. Oddy, W. D. Aug. 14, 1917. Planing and moulding.-In a planing and grooving machine especially adapted for cutting grooves in boards of a depth of half the thickness of the timber, the cutter head 6 is vertically slidable on a bracket 1 and is adjusted thereon by a lever 3 pivoted at 4 to the bracket. The parts are preferably arranged so that, when a roller 10 on the end of the lever is brought into contact with the surface of a board 7 secured on the work table 8, the cutter 2 is set at the required height. The cutter head can then be clamped by bolts 13 and the lever 3 released from the cutter head by swing- ing out a pivoted plate 14, which allows the lever to be swung back out of the way of the operator. To produce grooves wider than the length of the cutter, the upper slide 8 of the table can be moved on the lower slide 9, a stop on it working between two stops 17 carried on and adjustable by a screw 19 mounted on the slide 9. In the extreme positions, the slide 8 is locked to the slide 9 by clamps 24 having upper screw bolts 25 slidable in a guideway on the slide 8 and lower spring-pin bolts 26 adapted to engage in a series of holes in the slide 9.
Patent GB-163039-A (GB)
Title: Improved filter for gaseous media
IPC: B01D46/32
Filed: 1921-04-21
Abstract: 163,039. Fiechter, L. B. May 6, 1920, [Convention date]. Filtering.-A filter comprising an endless band of perforated material supporting a filtering layer of granular material such as sand, which is continuously discharged to be cleaned, is provided with a pair of guide walls extending longitudinally over the sides of the band and preventing escape of the sand &c. and of the gas to be filtered. As shown, the granular material is fed from a hopper k on to the band a to a height regulated by an adjustable slide m. The band is supported by rollers b, b and carries the sand &c. between the guide-walls d2 through a filter chamber d<1> wherein it is traversed by the gas to be filtered which afterwards escapes by the ports f. At the delivery end, the sand &c. falls into a hopper g to a purifier and after cleansing is returned to the feed hopper k.
Patent GB-233698-A (GB)
Title: Process for the manufacture of an aluminous cement of high initial strength
IPC: C04B7/32
Filed: 1925-05-04
Abstract: 233,698. Voisin, U. B., (Assignee of Roche, E. M.). May 6, 1924, [Convention date]. Cements, materials and compositions for.-An aluminous cement is made by heating to a clinkering temperature, for example, 1200‹- 1500‹ C., a mixture of bauxite and lime or limestone poorer in lime than the mixtures usually employed, the proportion of lime being at most equal to half that of the sum of the alumina and silica. According to an example, 50 parts by volume of medium hydraulic lime or limestone, and 50 parts of bauxite are ground, mixed, brinuetted and burnt at 1200-1500‹ C. for 12 hours, yielding a hard-grinding black clinker, which after grinding sets in 2-3 hours. By employing fat lime and slowing down the burning, a cement is obtained which sets almost immediately.
Patent GB-647806-A (GB)
Title: Improvements in or relating to apparatus for cleaning vehicles
IPC: B60S3/04
Filed: 1948-12-29
Abstract: 647,806. Control of several motors. MORISON, W. J. April 28, 1948, No. 11696. [Class 38(iii)] [Also in Group XXIII] In an apparatus, Fig. 7, for mechanically cleaning vehicles, (see Group XXIII), the electrical circuit for controlling the wiper motors 46, 48 and 50 and the motor driving the winch device 74 is shown in Fig. 8. The circuit comprises a travel limit switch 84, operable by means 86, 88 on a suspension cable, and a control arm 110, a manually operable switch 93, contactor 130 for energizing the wiper motors 46, 48, 50, and contactors 96 and 98 for causing the reversal of the winch motor 78 when the control arm 110 is actuated. A modification to the travel limit switch 166, Fig. 9, allows the motor 78, Fig. 8, to be reversed on operating the manual switch 93, at positions of the wiper carrier frame 18, Fig. 7, intermediate its upper and lower limits of travel.
Patent GB-1120678-A (GB)
Title: Improved grid member assembly for a suspended ceiling
IPC: E04B9/08
Filed: 1967-03-13
Abstract: 1,120,678. Suspended ceilings. ROLLFORM Inc. 13 March, 1967 [24 March, 1966], No. 11718/67. Heading E1W. A framing member 13 for a suspended ceiling is of inverted T-section with a cut out 55 in the vertical flange 23 which extends down to a position adjacent to the horizontal flanges 17, 19, the lower edge 57 of the cut out being formed with a single notch 59 intermediate its ends whereby any buckling due to excessive thermal expansion of the member 13 is confined to downward bending of the horizontal flanges 17, 19 in the area below the cut out 55, forming an apex opposite the notch 59. The framing member 13 may be connected in alignment with an adjacent framing member 21 by a splicing plate 29 having integral clips 65, 67, 69, 71, 73 which engage key-hole shaped slots 75, 77, 79, 81, 83 respectively, in the framing members 13, 21, the slots 75, 77 being elongated to allow relative sliding movement of the clips therein when buckling of the flanges below the cut out 55 takes place. The splicing plate 29 prevents upward buckling of the flanges 17, 19 in the area beneath the cut out 55. Transverse framing members 31, 33 Fig. 1 (not shown) are connected to the main members 13, 21, or to the splicing plate 55 by means of tabs on the ends of the transverse members engaging pairs of slots 51, 53; 54, 56 or 50, 52, respectively, constructed in accordance with the invention described and claimed in Specification 1,120,677.
Patent GB-733892-A (GB)
Title: An improved method of separating oil from bituminous sands
IPC: C10G1/04
Filed: 1953-04-28
Abstract: Crude oil is separated from bituminous sand by adding (a) a solvent for bitumen which solvent has a lower specific gravity than bitumen; and (b) a water-soluble salt or an aqueous solution thereof so that the specific gravity of the aqueous phase present in the bituminous sand is increased, subjecting the mixture to sufficient pressure to initiate a separation of the phases, and withdrawing the oil thus freed.  The process is carried out without the addition of heat at room temperatures above the freezing point of the liquid constituents of the bituminous sand. Solvent (a) may be a hydrocarbon oil such as kerosene, while water-soluble salt (b) may be sodium chloride.  The application of pressure may be effected by air, steam or gas in a pressure chamber, 40 lb. per square inch gauge being recommended, or the mixture may be centrifuged.  If desired, the mixture may be subjected to pressure between the addition of solvent (a) and the addition of the salt or salt solution (b).
Patent GB-1458542-A (GB)
Title: Apparatus for compensating misregistration of the electron beams in a colour cathode ray tube
IPC: H01J29/72
Filed: 1974-03-15
Abstract: 1458542 Colour television tubes SONY CORP 15 March 1974 [19 March 1973] 11725/74 Heading H1D [Also in Division H4] In a colour TV tube of the shadow mask type misregistration due to thermal expansion of the mask is prevented by providing means 8 including a plurality of coils which produce a magnetic field to change the beam paths when a current is passed and means including devices sensing the temperatures of the tube and of the structure and which varies the current according to the difference between the said temperatures. The means 8 comprise a pair of magnetic cores 6 carrying coils 7 and mounted on the funnel portion of the C.R.T. The thickness and material of the bent portions may differ from the straight portions. The position of the structure relative to the screen can be such that the current increases or decreases as the temperature increases. The current 9 includes thermistors with negative temperature coefficients of resistance attached to the CRT chassis and to a core 6 which changes in temperature in the same manner as the structure. The circuit also ineludes a variable resistor which allows the circuit to be used to compensate for maladjustment occurring during manufacture.
Patent GB-591273-A (GB)
Title: Improvements in the manufacture of disinfectants and chlorinated tar acids for use therefor
IPC: A01N61/02
Filed: 1944-06-21
Abstract: Disinfectants are obtained by either fractionally distilling tar acids and chlorinating the fraction boiling within the range of 226 DEG  to 240 DEG  C. or, by fractionally distilling tar acids, chlorinating the fraction boiling within the range 226 DEG  to 240 DEG  C., fractionally distilling the chlorinated tar acids and collecting the fractions having a Rideal Walker coefficient of above 100.  The boiling range 226 DEG  to 240 DEG  is conveniently divided into the ranges: 226 to 232 DEG  C. and 230 DEG  to 240 DEG  C. Advantageously, the Rideal Walker coefficient is above 150.  The products are conveniently converted into aqueous emulsions with the aid of a dispersing agent, e.g. soap.  In examples: (1) tar acid of boiling range 230 DEG  to 240 DEG  C. is treated in benzene solution with sulphuryl chloride and the chlorinated material is then distilled under reduced pressure to obtain a product having a Rideal Walker coefficient of 160 to 180; (2) tar acid of boiling range 226 DEG  to 232 DEG  C. is chlorinated and distilled as in (1) to obtain a product having a Rideal-Walker coefficient of 140; (3) chlorine is passed into tar acid of boiling range 230 DEG  to 240 DEG  C. and the product is vacuum distilled to obtain products of Rideal Walker coefficients ranging from 140 to 220.  Chlorine may be replaced by sulphuryl chloride to obtain products having coefficients of 180 and 250; (4) an aqueous soap emulsion of chlorinated tar acid made as in (1) with simple distillation and not fractionation is obtained by mixing the tar acid with castor oil soap solution, pine oil and methylated spirit.ALSO:Disinfectants are obtained by either fractionally distilling tar acids and chlorinating the fraction boiling within the range 226 DEG -240 DEG C, or by fractionally distilling tar acids, chlorinating the fraction 226- DEG 240 DEG C, and in addition fractionally distilling the chlorinated tar acids and collecting the fractions having a Rideal-Walker coefficient of above 100 and preferably above 150. The products may be converted into aqueous emulsions with the aid of a dispersing agent such as soap. In examples (1) tar acid of boiling range 230 DEG -240 DEG C is treated in benzene solution with sulphuryl chloride and the chlorinated product distilled under reduced pressure to obtain a product having a Rideal-Walker co-efficient of 160-180, (2) Tar oil of boiling range 236 DEG -262 DEG C is chlorinated and distilled as in (1) to obtain a product having a Rideal-Walker coefficient of 140. (3) Chlorine is passed into tar acid of boiling range 230 DEG -240 DEG C and the product distilled in vacuo to obtain fractions having Rideal-Walker coefficients from 140 to 220.  Chlorine may be replaced by sulphuryl chloride to obtain products having Rideal-Walker coefficients from 180-250. (4) An aqueous soap emulsion of a chlorinated tar acid made as in example (1) is obtained by mixing the tar acid with castor oil soap solution, pine oil and methylated spirit.
Patent GB-333595-A (GB)
Title: Improvements in or relating to stairways
IPC: E04F11/04
Filed: 1929-04-16
Abstract: 333,595. Bessler Disappearing Stairway Co., (Assignees of Bessler, F. E.). Jan. 19, 1929, [Convention date]. Ladders.-An attic ladder of the type which is power-actuated and is caused to swing as it slides through a ceiling opening, has the driving means controlled automatically by the movements of the swinging element. The ladder 13 is adapted to slide on brackets 14 pivotally mounted on a drum shaft 15, which is driven through reduction gearing from a motor 22. The motor is controlled through two hand switches 24, 25, and an automatic stopping and connection re-setting switch 26, which is operated by movements of the radius arms 16, which are pivoted to the switch box and to the upper ends of the ladder. A lug 16<a>, Fig. 3, on a radius arm operates switch arms 27, 28 connected to a lug plate 30, which is caused to actuate a tumbler 29 through pins 29<a> at the two extreme positions of the ladder. In order to render the control adjustable, contact screws 31 are used in the switch arms. An automatic switch for controlling a light in the upper room may be actuated through the other radius arm, and in order to foil burglars, or to keep out intruders when the ladder is raised, a cut-out switch 32 may be placed in the upper hand switch 25. In a modification, Fig. 6, for use with lofty rooms, the main ladder is provided with a sliding extension 35 operated from a separate drum 35<a> on the drum shaft, and the motor 22 is placed at the other end of the ceiling opening, part of the reduction gearing being at the motor end and part at the drum-shaft end. In a further modification, the ladder is raised and lowered by pinion and rack gear 40. 41 driven through worm gearing from a vertical shaft 23<c> operated by the motor 22, which is placed in a wall recess in the lower room, and in this form a ladder extension operated by belt and pulley gearing may also be provided. The lower end of the stairway is provided with a panel 18 to act as a ceiling closure. Specification 216,692 is referred to.
Patent GB-200617-A (GB)
Title: Improvements in and relating to twisting frames
IPC: D01H1/00
Filed: 1922-04-28
Abstract: 200,617. Johnston, A. H. April 28, 1922. Spindle-apparatus; creel arrangements; tension arrangements; spindle-driving apparatus; stop-apparatus, non-automatic. - In apparatus adapted to be attached to flyer twisting machines to effect the preliminary twisting of the several yarns, tubular nozzles 4 provided with holes 9 through which the yarn is passed are formed on the cop-holders 2 so as to tension tha yarn and to confine the twist to the yarn in front of the nozzle, and the wharl 6 is coupled to a disc 11, which drives the holders by a clutch which is connected and disconnected by moving the wharl by means of a guide 10 which engages a plate 12 thereon. The holders may be adapted to accommodate cross wound cops.
Patent GB-148016-A (GB)
Title: Improvements in visual signalling apparatus for use in mines
IPC: B66B19/06
Filed: 1919-05-14
Abstract: 148,016. Davidson, J. May 14, 1919. Mechanical telegraphs for use in mines.-A vertically slidable dial is moved in stages at each signal impulse and is held in position by a detent, and controlled by a dash-pot device, and by a " cut-out " device acting when the winding-engine is operated. At each operation of the bellpull 8, a pawl 5 on the rod 6 engages with one of the pins 4 on an indicator dial 1 and brings an indication on the dial opposite an aperture. The dial is retained by a detent 4a on the rod 18. The bell-pull also moves a rod 10 which has a pawl 11 engaging a stud 12 on the lever 13, which is controlled by a dash-pot 9. When the dash-pot piston has descended, a striker 16 trips the rod 18 against a spring 17 and releases detent 4a. When the winding-engine is operated, a striker 18a moves the rod 6 against a spring 21 and allows the dial to fall.
Patent GB-400648-A (GB)
Title: Improvements in and relating to electron discharge devices
IPC: H01J19/42
Filed: 1932-04-27
Abstract: .400,648. Thermionic valves. FERRANTI, Ltd., SUTTON, R. W., and BLACK, T. C., Hollinwood, Lancashire. April 27, 1932, No. 12140. [Class 39 (i).] The anode elements of a screenedgrid valve are supported on the screen grid by a U-shaped member, the ends and an intermediate part of which are brought into engagement with refractory insulators supported on the screen grid. As shown, the ends of a U-shaped wire b carrying flat or flattened cylindrical anode elements a, fit in steatite sockets e secured by washers to a flanged part d of the screen grid c. A metal tube g is fitted over a grooved insulating peg f secured to the grid, and is deformed so as to engage with the groove, the tube being subsequently welded to the middle of the wire b and the end flattened on to and welded to a lead h. In a modification, the ends of the wire b are inserted in metal tubes fitting over insulating-pegs and a wire, welded to the middle of the wire b, fits in an insulating socket mounted on its screen grid.
Patent GB-1050869-A (GB)
Title: Process for refining or melting metals in a furnace
IPC: C22B9/16
Filed: 1965-03-23
Abstract: 1,050,869. Melting and refining steel scrap. STE. HME. COCKERILL-OUGREE. March 23, 1965 [March 28, 1964; May 12, 1964; Nov.28, 1964], No. 12177/65. Heading C7D. The greater part of the melting and/or refining of a metallic charge, e. g. ferrous scrap to produce steels, in a furnace e.g. an electric, open hearth or a rotary furnace or a converter, is carried out by at least one post-mixing burner fed with an oxidising gas preferably pure oxygen containing sufficient oxygen for the complete combustion of the fuel which may be a liquid or gaseous hydrocarbon. The jet of oxidising gas emerging preferably has a speed at least that of sound, so that mixing with the fuel is effected outside the burner. For example, an emerging fuel jet may be enveloped by jets of oxygen. A non-combustible material, capable of dissociating at the temperature of combustion of the fuel e.g. above 2, 000‹C into elements whose recombination is exothermic, particularly water vapour, may be injected into the fuel and/or oxidising gas. The flame axis may be inclined to the longitudinal axis of the burner, e. g. using an oblique nozzle, and the burner may be rotated about its axis and preferably oscillated in a vertical plane about a horizontal axis so that the burner flame periodically sweeps the charge.